A good memory, especially strong working memory, is linked to intelligence and helps with learning and problem-solving, but it's not the sole indicator; intelligence also involves reasoning, creativity, and applying knowledge, and sometimes highly intelligent people prioritize useful forgetting over rote memorization to focus on deeper understanding. While memory aids IQ tests, true intelligence is multifaceted, combining recall with the ability to process, adapt, and use information, meaning someone can have a great memory but lack deep understanding, or vice versa.
In summary, while there's a relationship between certain memory capacities (like working memory) and intelligence, having a good memory doesn't automatically equate to a high IQ, and vice versa. Everyone has a unique blend of cognitive strengths and weaknesses.
Proven benefits of memorization for your brain. Memorization has several benefits for your brain. Not only does memorization increase your capacity to retain more knowledge, but it can also help develop new neural pathways that will improve other cognitive functions.
But memory strength varies from one person to another. What separates people with excellent memory skills apart from those who struggle is that they have both a strong working memory (retaining information immediately after learning it) and long-term memory (recalling information more than a day after memorizing it).
While scientists have always argued that IQ is baked into our DNA at birth, new research finds that certain aspects of intelligence are influenced by working memory, a cognitive skill that can be exercised. These findings suggest IQ is not fixed — it can be improved if working memory can be improved.
An IQ of 72 is considered borderline intellectual functioning, falling below the average range (90-109) but not quite low enough for a diagnosis of intellectual disability (typically below 70). It signifies slower learning, potential difficulties with complex concepts, and a need for more support in daily living and academic skills, placing someone in the bottom few percentiles of the population.
Twelve Signs of High IQ People
Mnemonists, memory champions, and persons with highly superior autobiographical memory (HSAM) are apparently rare breeds, with no more than a few dozen cases of each described in the neuroscientific literature.
Can you have ADHD and good working memory? Yes, although ADHD is often associated with working memory deficits, it is possible (though rare) for some individuals with ADHD to have strong working memory skills. These skills may still be impaired compared to those individuals without ADHD.
Exceptional memory is the ability to have accurate and detailed recall in a variety of ways, including hyperthymesia, eidetic memory, synesthesia, and emotional memory. Exceptional memory is also prevalent in those with savant syndrome and mnemonists.
The time when the brain works most rapidly is around age 18 or 19; short-term memory peaks at around age 25; and the ability to read other people's emotional states is optimal in one's 40s and 50s. When one is a senior, in their 60s or 70s, “crystallized” intelligence is the strongest.
Memory experts recommend the 20-20-20 rule, which prescribes going over the details of a presentation for 20 minutes, then repeating the same material twice more. If material is not repeated within 30 minutes, it is not encoded into long-term memory.
Because vivid initial impressions correlate with better recollection, gifted brains are also characterized by increased memory efficiency and capacity.
Snoop Dogg has publicly stated he has an IQ of 147, a score that falls into the "highly gifted" or "genius" category, much to his own surprise given his self-described average school performance (straight Cs). While this self-reported score suggests exceptional intellect, IQ tests measure specific cognitive abilities, and success in life and business (like Snoop Dogg's multifaceted career as a rapper, entrepreneur, and media personality) reflects a broader range of intelligence and skills.
New research indicates that being forgetful doesn't mean you're losing your marbles, in fact, it could mean that you are exceptionally intelligent. People with the best memories in the long term usually forget details once they are no longer needed.
All in all, highly intelligent and rational people are intensely analytical, curious. They are a natural strategic and independent thinker. In addition, they have a highly complex inner world that not many people get.
The ADHD "30% Rule" is a guideline suggesting that executive functions (like self-regulation, planning, and emotional control) in people with ADHD develop about 30% slower than in neurotypical individuals, meaning a 10-year-old might function more like a 7-year-old in these areas, requiring adjusted expectations for maturity, task management, and behavior. It's a tool for caregivers and adults with ADHD to set realistic goals, not a strict scientific law, helping to reduce frustration by matching demands to the person's actual developmental level (executive age) rather than just their chronological age.
The ADHD "2-Minute Rule" suggests doing any task taking under two minutes immediately to build momentum, but it often backfires by derailing focus due to weak working memory, time blindness, and transition difficulties in people with ADHD. A better approach is to write down these quick tasks on a separate "catch-all" list instead of interrupting your main work, then schedule specific times to review and tackle them, or use a slightly longer timeframe like a 5-minute rule to prevent getting lost down "rabbit holes".
Hyperactive-impulsive ADHD.
This involves difficulty sitting still or having “quiet time.” You have excess energy and are extremely talkative. You may also interrupt others and act without thinking it through first.
Rapidity, length of time, accuracy of recall or recognition and serviceableness are the signs of good memory. Have the intention to learn. Interest and close attention are essential for effective learning and memorization. Make a picture of the situation to be remembered.
About 75% of your brain is water, making hydration crucial for sharp thinking, focus, and mood, as even mild dehydration (losing 2% of body water) can impair memory, concentration, and reaction time. The remaining part of the brain is mostly fat, and this water content is essential for creating neurotransmitters and supporting brain function.
Our ability to remember new information peaks in our 20s, and then starts to decline noticeably from our 50s or 60s. Because the hippocampus is one brain region that continues producing new neurons into adulthood, it plays an important role in memory and learning.
How to spot a genius – the 10 Behaviours Geniuses Display
Meaning of IQ
85 to 115 - Two thirds of us have an IQ in this range: the 'average' IQ is 100. Over 135 - You are in the top 1%.
Every one of them is shedding outdated beliefs — about success, work, and themselves. They know the real growth isn't about adding more knowledge, but letting go of the wrong ones. The smartest people I know aren't chasing hacks. They're quietly building depth, discipline, and clarity — the things that compound.